INT 2F U - POWER.EXE - GET/SET POWER STATUS                                     
	AX = 5401h
	BH = function
	    00h get status
		Return: BL = current power management status (see #02837)
	    01h set status
		BL = new power managment status (see #02837)
Return: AX = function status (see #02838)
Note:	called by MS Windows 3.1 POWER.DRV
SeeAlso: AH=53h,AX=5400h,AX=5402h,AX=5403h


Bitfields for power management status:
Bit(s)	Description	(Table 02837)
 0	POWER.EXE power management enabled
 1	APM firmware power management enabled
 2-7	reserved (0)
Notes:	bit 1 is ignored if there is no APM firmware
	bits 1-0: 00 = POWER OFF, 10 = POWER STD, 11 = POWER ADV


(Table 02838)
Values for POWER.EXE function status:
 0000h	successful
 0002h	"ERROR_PM_ALREADY_CONNECTED"
 0003h	"ERROR_PM_NOT_CONNECTED"
 0087h	"ERROR_PM_INVALID_PARAMETER"